Car-truck



2 sheets- -Sheet 1. A. K MANSPIELD- (No Model.)

GAR TRUCK.

Patented Oct. 29, 1895 ANDREW EXERMMM. PNOTOLITNQWASIIINGTDMRC (No Mel.) 2 Sheets-Sheet 2.

A. K. MANSFIELD.

GAR TRUCK. Patented Oct. 29,1895,

WITNESSES:

ANDREW ass/mm.mom-unuwasnmsmmnc. 1

2 UNIT D STATES PATENT OFFI E.

ALBERT K. MANSFIELD, OF SALEM, ASSIGNOR OF ONE-HALF TO SAMUEL M.

. FELTON, OF CINCINNATI, OHIO.

SPECIFICATION forming part of Letters Patent No. 548,807, dated October29,1895. Application filed August 16, 1895. Serial No. 559,437- (Nomodel.)

To aZZ whom it may concern.-

Be it known that I,'ALBERT K. MANSFIELD, of Salem, in the county ofOolumbiana and State of Ohio, have invented acertain new and usefulImprovement in'Oar-Trucks, of which improvement the following is aspecification.

My invention relates to car-trucks of the class or type in whichmetallic members are employed throughout, and which are moreparticularly designed for service in freight-cars andlocomotive-tenders, an instance of such class or type being exemplifiedin an application for Letters Patent filed by me May 9, 1895, Serial No.545,703.

The object of my present invention is, as in my application, Serial No.548,703, aforesaid, to provide a truck of this class which shall embodythe features of simplicity, strength, durability, and economy inconstruction, and which shall afford convenient facilities for theutilization of springs of any desired type and for the ready removal andreplacement thereof, as may from time to time be required.

The improvement claimed is hereinafter fully set forth.

In the accompanying drawings, Figure 1 is a side view, in elevation, ofa car or tender truck, illustrating an embodiment of my invention; Fig.2, a plan view with the upper half in section at the line a: a: of Fig.1; Fig.

3, a vertical longitudinal. section at the line y y of Fig. 2; and Fig.4, a vertical transverse section, the left-hand half being taken in theplane of one of the axles and the right-hand half in the central planeof the truck.

My invention is designed to economize, sim-.

V plify, strengthen, and lighten the construction of the truck-frame byutilizing therein, wherever practicable, plates, sheets, or beams ofmetal, preferably steel, brought to the required form by pressing,bending, or rolling, and particularly commercial shapes, as I- beams andchannels, these latter being man ufactured, for various other uses, ofthe proportions and strength required, and being obtainable in the openmarket at lower cost than that of manufacturing special shapes, whichspecial shapes can, however, be adopted to a greater or less extent, andcan also be made at a comparatively small cost and to the standtaperingtherefrom to end portions of less depthand is flanged on its upper andlower sides. The plate of each side member forms a beam ofchannel-section, as shown in Fig. 4, the metal of which is cutoutaboutits central portion to form an opening 3, through which theelliptic springs 17 may be inserted and removed and through which theirouter ends protrude when in service. An outwardlyturned flange, asshown, is preferably formed around the opening 3. The axle-boxes 2 arelocated under the ends of the side-frame mem-.

bers and are connected thereto by axle-box bolts 26, fitting close to oragainst the bodies of the side-frame members and passing throughopenings in the flanges thereof, through boltholes in the boxes, andthrough the pedestal tie-bars 27.

The axle-boxes are preferably of theMaster Oar-Builders standardconstruction, and carry-in the usual manner the journal-bearings 7 ofthe axles 8, on which the wheels 9 are secured. In order to conform tothe length of the axle-boxes used and to enable the webs of theside-frame members to be located as nearly as may be in line with themiddle of the journals, widening-plates 6,

made of sections of half T-bars, may, if desired, be riveted to theinner sides of the sideframe members 1.

The side-frame members are connected by transoms 10, each of which ispreferably a channelbar of steel. The transoms are secured to theside-frame members 1 by vertical angle-bars 4, riveted to the Webs ofthe transoms and to the bodies of the side frames, and by plates 5, ofsubstantially triangular form, riveted to the top flanges of thetransoms and of the side-frame members 1, the transoms being set so thattheir top flanges shall be inline with the tops of the side-framemembers at the middle portions thereof.

Spring-supports 15, each of which is a continuous plate of metal, in theinstance shown bent into trough-section with side flanges at its top andhaving downwardly-turned end flanges to provide proper stiffness, arelocated between the transoms 10, and their outer end flanges are rivetedto the side-frame members 1, in which, as before stated, suitableopenings 3 are formed, adapted to admit of the insertion and removal ofthe springs 17. The spring-supports 15 are secured laterally by rivetspassing through their top side frames to the lower flanges of thetransoms 10, and the springs 17, which are in this instance of theelliptic type, rest on the upper faces of the spring-supports. Thespring-supports are in this case made of trough-section, as shown, toconform to the required height or depth of the bolster and springs, butmay obviously be reduced in depth or brought to the form of a fiat platewith end stiffeningflan gcs, accordingly as the height of the bolsterand springs or either may be reduced or the position of the center platebe raised, or both.

The bolster 18, which is supported at or near its ends on the springs 17and fits freely between the transoms 10, is composed of two metal bars,which are preferably I-beams, as shown, and of steel, and are connectednear their ends by interposed distance-pieces 19, each formed of a shortpiece of an I-beam, the flanges of which are riveted to the webs of thebolster-bars. Chafing-pieces 21, formed of Z-bars, are riveted to thewebs of the bolster-beams in position to abut against the inner faces ofthe transoms. A center plate 13, of any suitable and preferredconstruction, is secured to the upper flanges of the bolsterbeams andserves to receive a center plate 14 on the car-body in the usual manner.Pressed steel center plates, as indicated in the draw ings, arepreferably adopted.

Side bearing-plates 23, of any preferred construction, are riveted tothe upper flanges of the bolster-beams at a proper distance from theends of the bolster.

It will of course be understood that the truck is to be provided withsome suitable and preferred brake apparatus, which may be connected inthe usual manner, and which, as it does not constitute any part of mypresent invention, is not herein set forth.

It will be observed that with the exception of the side-frame membersand spring-sup ports, both of which can be readily and compa rativ'elyinexpensively pressed into desired form, and the top connecting-platesof the transoms and side members, which are cut out of plain plates, theremainder of the frame and bolster members and their connections arecommercial shapes of standard sections, such as are made for the marketby leading manufacturers, and are obtainable in large or smallquantities, as desired, at such prices as render their utilization verydesirable in effecting economy in the cost of construction ofcar-trucks, as hereinbefore described.

It will be further obvious that the structure above described maybemodified to a greater or less degree in matters of detail withoutdeparture from the characteristic features of myinvention, and I do nottherefore desire to limit myself to the specific forms of the severalmembers which are described and shown in the instance exemplified.

I claim as my invention and desire to secure by Letters Patent 1. In acar truck, the combination, substantially as set forth, of a metal plateside frame member, bent into form to present a deep central portion andend portions of less depth, with upper and lower flanges, a pedestal tiebar fitting against the central portion of the side frame member, axleboxes interposed between the end portions of the side frame members andthe pedestal tie bar, and axle box bolts passing through the flanges ofthe side frame member, and through the axle boxes and pedestal tie bars.

2. In a car truck, the combination substantially as set forth, of twometal plate side frame members, metal beam transoms of commercial rolledshape, connections, of commercial rolled shape, between the side framemembers and the transoms, and a metal beam bolster, of commercial rolledshape, supported on the transoms.

3. In a car truck, the combination,substantially as set forth, of twometal plate side frame members, having upper flanges, metal beamtransoms interposed between said side frame members, connections, ofcommercial rolled shape, between the side frame members and thetransoms, and plates riveted to the upper flanges of the side framemembers and of the transoms.

4. In a car truck, the combination, substantially as set forth, of twometal plate side frame members, having upper flanges, metal beamtransoms interposed between said side frame members, plates riveted tothe upper flanges of the side frame members and of the transoms, andangle bars riveted to the webs of the transoms and to the bodies of theside frame members.

5. In acar truck, the combination, substantially as set forth, of twometal plate side frame members, commercial shape channel bar transomsconnecting said side frame mem bers, metal plate spring supports havingtransverse stiffening flanges at their ends, said spring supports beingriveted laterally to the lower flanges of the transoms and having theirouter end flanges riveted to the side frame members, springs resting onsaid spring supports, and a metal beam bolster supported on saidsprings.

6. In a car truck, the combination, substantially as set forth, of ametal plate side frame membervhaving upper and lower flanges, a pedestaltie bar, axle boxes interposed between the end portions of the sideframe member and the pedestal tie bar, widening pieces of half T sectionriveted to the side frame member above the axle boxes, and axle boxtially as set forth, of a metal plate side frame member, which ispressed or bent into form to present a deep central portion and endportions of less depth, with flanges on its upper and lower sides and acentral opening adapted to admit of the insertion and removal ofsprings, a pedestal tie-bar, axle boxes fitting between the end portionsof the side frame and the pedestal tie-bar, and pedestal boltsconnecting the side frame member, axle boxes, and pedestal tie-bar.

ALBERT K. MANSFIELD.

Witnesses:

J. SNOWD-EN BELL, F. E. GAITHER.

